LX1918CLD MICROSEMI [Microsemi Corporation], LX1918CLD Datasheet - Page 7

• Manufacturer Part Number: LX1918CLD
• Description: 1.8A Step-Down Synchronous Converter
• Manufacturer: MICROSEMI [Microsemi Corporation]

Copyright © 2004
Rev. 1.1, 2005-07-05
-0.5%
-1.0%
1.0%
0.5%
0.0%
100.0%
L I N E R E G U L A T I O N ( 1 . 8 V O U T )
90.0%
80.0%
70.0%
60.0%
50.0%
40.0%
30.0%
20.0%
10.0%
0.0%
100%
TM
90%
80%
70%
60%
50%
40%
30%
20%
10%
2.7
0%
E F F I C I E N C Y 3 . 3 V T O 1 . 8 V
E F F I C I E N C Y 5 V T O 3 . 3 V
1
1
High n (100mA)
Low EMI (100mA)
High n (600mA)
Low EMI (600mA)
3.2
10
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
10
Output Current (mA)
Output Current (in mA)
3.7
Input Voltage
100
100
4.2
η - low emi
η - hi eff
1000
1000
4.7
η - low emi
η - hi eff
Integrated Products Division
®
10000
5.2
Microsemi
10000
1.8A Step-Down Synchronous Converter
O U T P U T C U R R E N T V S . D U T Y C Y C L E
-0.1%
-0.2%
-0.3%
-0.4%
-0.5%
-0.6%
-0.2%
-0.4%
-0.6%
-0.8%
1.9
1.8
1.7
1.6
1.5
1.4
1.3
0.4%
0.3%
0.2%
0.1%
0.0%
0.6%
0.4%
0.2%
0.0%
R E G U L A T I O N 3 . 3 V T O 1 . 8 V
0%
R E G U L A T I O N 5 V T O 3 . 3 V
0
0
P
Iout max DC Load vs Duty Cycle
RODUCTION
25%
Output Current (in mA)
500
Output Current (mA)
500
Duty Cycle
D
50%
ATA
S
HEET
1000
1000
75%
reg-low emi
reg - hi eff
reg-low emi
reg - hi eff
100%
LX1918
1500
1500
Page 7